INVESTIGADORES
PERILLO Gerardo Miguel E.
artículos
Título:
New mechanisms studied for creek formation in tidal flats: from crabs to tidal channels.
Autor/es:
PERILLO, GERARDO M. E.; IRIBARNE, OSCAR O
Revista:
EOS TRANSACTIONS - AMERICAN GEOPHYSICAL UNION
Editorial:
American Geophysical Union
Referencias:
Lugar: Washington DC; Año: 2003 vol. 84 p. 1 - 5
ISSN:
0096-3941
Resumen:
Mechanisms for the formation of creeks intidal flats are rarely discussed in the peerreviewedliterature.Moreover,while there aregeneral theories about how creeks form intidal flats, there is no data to support thesetheories. It is generally believed that marshesinherit creeks from previous tidal flats thatplants colonize, and that further modify thecreeks. Recently,we have discovered newmechanisms for creek formation in three differentenvironments of Argentina in whichtidal creeks are actually originating in bothfresh and salt marshes. One of the most surprisingand interesting findings is that creekformation can actually be a product of theintense action of crabs (Chasmagnatus granulata).In these settings, crabs first interact witha halophytic plant (Salicornia ambigua),developing zones of high-density of crabholes,which then are utilized by groundwaterand tidal action to form channels.This specificinteraction forms a series of rings that, to thebest of our knowledge,have not been describedelsewhere in the literature.
